package com.sun.controller.user;

import com.sun.constant.StatusConstant;
import com.sun.entity.Artwork;
import com.sun.result.Result;
import com.sun.service.ArtworkService;
import com.sun.vo.ArtworkVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userArtworkController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-艺术品浏览接口")
public class ArtworkController {
    @Autowired
    private ArtworkService artworkService;

    @Autowired
    private RedisTemplate  redisTemplate;

    /**
     * 根据分类id查询艺术品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询艺术品")
    public Result<List<ArtworkVO>> list(Long categoryId) {

        //构造redis中的key，规则：artwork_分类id
        String key = "artwork_" + categoryId;

        //查询redis中是否存在艺术品数据
        List<ArtworkVO> list =
                (List<ArtworkVO>) redisTemplate.opsForValue().get(key);
        if(list != null && list.size() > 0){
            //如果存在，直接返回，无须查询数据库
            return Result.success(list);
        }
        Artwork artwork = new Artwork();
        artwork.setCategoryId(categoryId);
        artwork.setStatus(StatusConstant.ENABLE);//查询起售中的艺术品

        //如果不存在，查询数据库，将查询到的数据放入redis中
        list = artworkService.listWithFlavor(artwork);
        redisTemplate.opsForValue().set(key, list);

        return Result.success(list);
    }


}
